Merge Two Partitions into a Bigger One

If you have an already partitioned hard drive and one of the partitions is running out of space, how to extend it? Here you can merge the partitions with AOMEI Partition Assistant. For example, there are three volumes on the disk: E, C, F, and you want to add F to C drive without reinstalling Windows7 or formatting C. Then how to merge the two partitions into a bigger one without any data loss becomes a very hot topic among the computer users, because any improperly operation during the whole process will cause seriously problems.


  • The unallocated space can be merged to any existing volume.
  • The software can merge at most two partitions every time.
  • Only the two partitions are contiguous, they can be merged.
  • Data partition can be merged to system partition, but system partition can't be merged to data partition.
  • The "system reserved" in Windows 7 can not be merged.

Merge partitions with AOMEI Partition Assistant

The following introduces two different cases, merge two adjacent partitions and merge the unallocated space to one partition with AOMEI Partition Assistant Professional Edition.

First of all, free download and launch it

Case1: when there is no unallocated space on the hard disk, you need to merge two existing volumes.

Step1: Launch AOMEI Partition Assistant, right-click C: and select "Merge Partitions".

Main interface

Step2: In the dialog box, click F, then click "OK".

Click F

Step3: Click "Apply" on the toolbar to commit the operations.

Case 2: there is an unallocated space on the disk, but not behind C drive.

Step1: Right-click C and select "Merge Partitions".


Step2: In the dialog box, click the unallocated space, then click "OK".

Click the unallocated space

Step3: Click "Apply" on the toolbar to save the changes.

The unallocated space has been merged

From the aforesaid, we can make a conclusion that AOMEI Partition Assistant can merge the partitions with simple operations. There is no need to format partition or reinstall Windows operating system.

Furthermore, this software brings many other useful features, such as resizing partition to adjust the size of disk space, create new partitions to install large size files, allocate free space from one partition to extend system partition and so on.

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